Search Results - "Walker, R.S."

Gastrointestinal nematode infection and performance of weaned stocker calves in response to anthelmintic control strategies by Walker, R.S., Miller, J.E., Monlezun, C.J., LaMay, D., Navarre, C., Ensley, D.

“…Gastrointestinal nematode (GIN) parasite control recommendations are in a state of flux because of the increase in anthelmintic resistant cattle parasites,…”
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Susceptibility of lizards to predation under two levels of vegetative cover by Pietrek, A.G., Walker, R.S., Novaro, A.J.

“…The risk of increased predation is a potential cost for habitat specialists, when dispersing through non-habitat matrix. We hypothesized that dispersal success…”
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Influence of a CIDR prior to bull breeding on pregnancy rates and subsequent calving distribution by Lamb, G.C., Dahlen, C.R., Vonnahme, K.A., Hansen, G.R., Arseneau, J.D., Perry, G.A., Walker, R.S., Clement, J., Arthington, J.D.

“…We determined whether insertion of a CIDR for 7 days prior to the breeding season enhanced pregnancy rates and altered the date of conception in suckled beef…”
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Food storage, mobility, and the density-dependence of hunter-gatherer movement ecology by Hamilton, Marcus J., Buchanan, B., Lobo, J., Walker, R.S.

“…•Hunter-gatherer movement ecology is density-dependent.•While storage is a response to environmental seasonality, mobility reduction is a response to…”
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Pre-synchronization of ovulation timing and delayed fixed-time artificial insemination increases pregnancy rates when sex-sorted semen is used for insemination of heifers by Oosthuizen, N., Fontes, P.L.P., Oliveira Filho, R.V., Dahlen, C.R., Grieger, D.M., Hall, J.B., Lake, S.L., Looney, C.R., Mercadante, V.R.G., Neville, B.W., Perry, G.A., Powell, J.G., Prezotto, L.D., Seidel, G.E., Walker, R.S., Cardoso, R.C., Pohler, K.G., Lamb, G.C.

“…•Delaying TAI from 54 to 72 h did not increase PR/AI with sex-sorted semen.•Presynchronization combined with delayed TAI increased PR/AI with sex-sorted…”
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High adult mortality among Hiwi hunter-gatherers: Implications for human evolution by Hill, Kim, Hurtado, A.M., Walker, R.S.

“…Extant apes experience early sexual maturity and short life spans relative to modern humans. Both of these traits and others are linked by life-history theory…”
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Impacts of incorporation of follicle stimulating hormone into an estrous synchronization protocol for timed artificial insemination of crossbred beef cattle by Gentry, G.T., Walker, R.S., Gentry, L.R.

“…•Evaluated incorporation of FSH in an estrous synchronization protocol for TAI.•Incorporation of FSH did not affect TAI or overall pregnancy rates of cows or…”
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Effects of livestock on the feeding and spatial ecology of Geoffroy’s cat by Pereira, J.A., Walker, R.S., Novaro, A.J.

“…We compared diet composition, prey selection, home-range size, daily movements, and habitat preference of Geoffroy’s cats ( Leopardus geoffroyi) between cattle…”
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empirical test of source-sink dynamics induced by hunting by Novaro, A.J, Funes, M.C, Walker, R.S

“…1. Under the source-sink model, persistence of populations in habitat sinks, where deaths outnumber births, depends on dispersal from high-quality habitat…”
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Modified maxillary occlusal splint for prevention of cheek biting: a clinical report by Walker, R S, Rogers, W A

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Abundance, distribution and size structure of zooplankton along a 20° west meridional transect of the northeast Atlantic Ocean in July by Gallienne, C.P, Robins, D.B, Woodd-Walker, R.S

“…Zooplankton distribution, abundance and size structure were characterised on leg 2 of the PRIME cruise in the northeast Atlantic during July 1996. Latitudinal…”
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Prospective evaluation of an ultra-tapered catheter in selectively cannulating the common bile duct by Carlson, S.J., Lee, D., Walker, R.S., Mingolelli, J., Williams, P., Parsons, W.G.

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Implementation considerations for a doubly-steered, coherently-focussed high-resolution broadband beamformer for source location estimation by Swingler, D.N., Walker, R.S., Krolik, J.

“…It is demonstrated that the doubly steered, coherently focused broadband beamformer implementation is a practically viable technique for source location…”
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High-resolution broadband beamforming using a doubly-steered coherent signal-subspace approach by Swingler, D.N., Walker, R.S., Krolik, J.

“…H. Wang and M. Kaveh's (1985) wideband coherent signal-subspace technique is shown to have a straightforward correlation domain interpretation, with their…”
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Linear-predictive data extrapolation narrow-band spectral estimation by Swingler, D.N., Walker, R.S.

“…It is demonstrated that T.J. Ulrych et al.'s (J. Geophys., Res., vol.78, p.4959-64, 1973) hybrid Fourier-Burg method of narrowband spectral estimation has…”
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Dominant-mode steered linear prediction for high resolution broadband source location by Krolik, J., Swingler, D.N., Walker, R.S.

“…The authors develop a linear predictive approach for high-resolution broadband-bearing estimation in low signal-to-noise ratio environments. The proposed…”
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Diet quality and nutrient intakes of Black southern rural elderly by Lee, C.J, Templeton, S.B, Marlette, M, Walker, R.S, Fahm, E.G

“…This study of 604 Black rural elderly residing in 11 southern states revealed low intakes of calcium, dietary energy and dietary fiber and high intakes of fat…”
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Line-array beamforming using linear prediction for aperture interpolation and extrapolation by Swingler, D.N., Walker, R.S.

“…It is demonstrated that linear prediction can be successfully utilized in conjunction with otherwise conventional narrow-band line-array beamforming for…”
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POLIMORFISMO DE BASE ÚNICA NO GENE DA TIREOGLOBULINA RELACIONADO AO MARMOREIO CÁRNEO EM BOVINOS DA RAÇA PANTANEIRA by Barreto C.F., Walker C.C., Juliano R.S., Ramos A. F., Barbosa E.A., Alves F.V. , Santos S., Albuquerque M.S.M., Egito A.A.

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Impact of special diets on the nutrient intakes of southern rural elderly by Lee, Chung J.A, Warren, Ann P, Godwin, Sandria, Tsui, Jean C, Perry, Geraldine, Hunt, Sharon K, Idris, Rafida, Walker, Retia Scott, Evans, Hattie F, Stigger, Flavelia E, Leftwich, Sylvia S

“…As part of a regional research project, 11 land-grant universities located in 11 US southern states have been studying noninstitutionalized rural elderly. In…”
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